CN212732987U

CN212732987U - Aggregate screening machine

Info

Publication number: CN212732987U
Application number: CN202021129134.0U
Authority: CN
Inventors: 朱曹峰; 王勃; 吴会林
Original assignee: Suzhou Yitong Concrete Co ltd
Current assignee: Suzhou Yitong Concrete Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-03-19
Anticipated expiration: 2030-06-17

Abstract

The utility model relates to the technical field of concrete production devices, in particular to an aggregate screening machine, which comprises a frame and a screening frame arranged above the frame, wherein the screening frame comprises a screening box, a plurality of screening plates are arranged in the screening box in sequence from top to bottom, a plurality of discharge ports are arranged on one side of the screening box, the plurality of discharge ports are respectively positioned on one side of the plurality of screening plates, and a sealing door is arranged on each discharge port; the two ends of the screening frame in the horizontal direction are fixedly connected with rotating shafts, the axes of the two rotating shafts are positioned on the same straight line, and the rotating shafts are rotationally connected with the rack; the frame is provided with a first driving mechanism for driving the screening frame to swing along the axis of the rotating shaft. A actuating mechanism drives the screening frame and constantly swings, can fully screen the aggregate for the aggregate of different particle sizes can separate, and after the aggregate screening finishes, will seal the door and open, can take out the aggregate in the screening case from the discharge gate, thereby has realized the screening machine to the abundant screening of aggregate.

Description

Aggregate screening machine

Technical Field

The utility model belongs to the technical field of the concrete production device technique and specifically relates to a aggregate screening machine is related to.

Background

Concrete is a general name of composite materials which are prepared by mixing gel materials, aggregates and water according to a proper proportion and then are hardened for a certain time, and is the artificial civil engineering and construction material with the largest usage amount in the world. The concrete aggregate is a granular loose material which plays a role of a framework or filling in concrete. The aggregate is divided into coarse aggregate and fine aggregate. The coarse aggregate comprises pebbles, broken stones, waste residues and the like, and the fine aggregate comprises medium fine sand, fly ash and the like.

Because the granularity of the aggregate used by the concrete with different grades is different, the aggregate needs to be screened to ensure the uniformity of the aggregate. When the aggregate is screened, an aggregate screening machine is needed.

Among the prior art, the utility model discloses a novel patent of use that publication number is CN209646956U specifically discloses an aggregate screening machine, which comprises a frame, frame from the top down includes top screening frame, intermediate level screening frame and bottom screening frame in proper order, and one side of each screening frame all is provided with the export that is used for the blanking to the export all sets up down, and frame one side is provided with vibrating motor, be equipped with a plurality of push rods that are used for pushing away the aggregate on the bottom screening frame of frame, drive push rod carry out elevating movement's actuating mechanism. When the aggregate screening machine is used, the vibrating motor can drive the top screening frame, the middle screening frame and the bottom screening frame to vibrate, and meanwhile, the driving mechanism can drive the pushing rod to turn the aggregates, so that the effect of screening the aggregates is achieved.

Above-mentioned scheme has following defect, when the aggregate screening machine carries out the screening to the concrete aggregate, the aggregate can vibrate and remove to the exit of screening frame gradually to leave the screening frame from the exit, the aggregate screening machine does not fully sieve the aggregate, consequently, the less aggregate of granule and the great aggregate of granule can leave the screening frame from the exit simultaneously easily, make the screening machine be not convenient for carry out abundant screening to the aggregate.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides an aggregate screening machine can carry out abundant screening to the aggregate.

The above object of the present invention is achieved by the following technical solutions:

the aggregate screening machine comprises a rack and a screening frame arranged above the rack, wherein the screening frame comprises a screening box, a plurality of screening plates are sequentially arranged in the screening box from top to bottom, the sizes of screening holes on the plurality of screening plates are gradually reduced from top to bottom, a plurality of discharge ports are formed in one side of the screening box and are respectively positioned on one side of the plurality of screening plates, and a sealing door is arranged on each discharge port;

the two ends of the screening frame in the horizontal direction are fixedly connected with rotating shafts, the axes of the two rotating shafts are positioned on the same straight line, and the rotating shafts are rotationally connected with the rack; and a first driving mechanism for driving the screening frame to swing along the axis of the rotating shaft is arranged on the rack.

Through adopting above-mentioned technical scheme, place the aggregate on the sieve that is located screening case the superiors, start first actuating mechanism, first actuating mechanism drives the screening frame and swings along the pivot axis to sieve the aggregate, and a plurality of sieves can sieve the aggregate into the aggregate of different particle sizes. A actuating mechanism drives the screening frame and constantly swings, can fully screen the aggregate for aggregate of different particle sizes can part totally, and after the aggregate screening finishes, will seal the door and open, can take out the aggregate in the screening case from the discharge gate, thereby realized the screening machine to the abundant screening of aggregate.

The present invention may be further configured in a preferred embodiment as: first actuating mechanism includes the motor and the drive group price with frame fixed connection, drive assembly include the carousel be connected with the motor output and with set up the transfer line between carousel and screening frame, transfer line one end is rotated with carousel edge and is connected, and the other end is rotated with one side of screening frame lower extreme and is connected of keeping away from the pivot.

Through adopting above-mentioned technical scheme, starter motor, motor can drive the carousel and rotate, and crank link mechanism is constituteed to carousel and connecting rod, and the carousel constantly rotates, can drive connecting rod reciprocating motion from top to bottom to it waves to drive the screening frame, thereby sieves the aggregate.

The present invention may be further configured in a preferred embodiment as: the drive assembly is provided with two sets ofly, two sets of drive assembly is along pivot axis symmetric distribution, the carousel rotates with the frame to be connected, and the coaxial fixedly connected with first band pulley of carousel, the motor output is connected with the second band pulley, be connected through the hold-in range between first band pulley and the second band pulley.

Through adopting above-mentioned technical scheme, when the motor rotates, can drive two sets of drive assembly and rotate for two sets of drive assembly can drive the both sides of screening frame respectively, makes the both sides of screening frame atress simultaneously, so that the screening frame swings, and effectively promotes the wobbling stability of screening frame.

The present invention may be further configured in a preferred embodiment as: the motor output end and the second belt wheel are provided with a speed reducer, the high-speed end of the speed reducer is coaxially and fixedly connected with the motor output end, and the second belt wheel is coaxially and fixedly connected with the low-speed end of the speed reducer.

Through adopting above-mentioned technical scheme, the reduction gear can effectively reduce the rotational speed of motor, promotes motor output torque to the motor can drive the screening frame and wave, thereby is convenient for sieve the aggregate.

The present invention may be further configured in a preferred embodiment as: the screening frame also comprises a support plate, the edge of the lower end of the screening box is hinged with the upper end of the support plate, and the hinged part of the screening box and the support plate is positioned right below the discharge port; a second driving mechanism for driving the screening box to turn over along the hinged position is arranged between the screening box and the supporting plate;

one side of the support plate far away from the hinged position is provided with a locking mechanism for fixing the screening box.

Through adopting above-mentioned technical scheme, second actuating mechanism can drive the screening case and overturn for aggregate in the screening case can be from discharging screening case in the discharge gate by oneself, can effectively promote the convenience degree that the screening machine used. Simultaneously, locking mechanism can fix screening case and backup pad to guarantee the wholeness of screening case and support frame, promote the stability of screening frame during operation.

The present invention may be further configured in a preferred embodiment as: the second driving mechanism is set to be a hydraulic cylinder, the cylinder body of the hydraulic cylinder is hinged to the supporting plate, and the piston rod of the hydraulic cylinder is hinged to the lower end of the screening box.

Through adopting above-mentioned technical scheme, the extension of pneumatic cylinder piston rod can be with screening frame upset to make the automatic discharge screening case of aggregate, can promote the convenience that the screening machine used.

The present invention may be further configured in a preferred embodiment as: locking mechanism include with backup pad upper end fixed connection's bracing piece, with bracing piece upper end articulated locking pole and with screening case fixed connection's lock plate, the locking pole upper end be provided with lock plate joint complex latch hook, the locking pole lower extreme extends to backup pad one side and fixedly connected with spring, the spring sets up along the locking pole rotation direction, the one end fixedly connected with butt board of bracing piece is kept away from to the spring, butt board lower extreme and backup pad fixed connection.

Through adopting above-mentioned technical scheme, the latch hook can meet with the lock plate to can fix screening case and backup pad, the setting of spring can guarantee latch hook and lock plate complex stability, makes the latch hook difficult to break away from mutually with the lock plate, guarantees the normal work of locking structure.

The present invention may be further configured in a preferred embodiment as: the closed door lower extreme is articulated with the screening case, the closed door upside is provided with the lock, the lock includes with screening case lateral wall fixed connection's solid fixed ring, with gu fixed ring slide the inserted bar of being connected and the inserted ring of closed door fixed connection, the inserted bar is pegged graft with the inserted ring and is cooperated.

By adopting the technical scheme, the sealing door and the screening box can be fixed by connecting the inserted rod with the inserted ring, so that aggregates cannot fall out of the screening box when the screening machine works; the insertion rod is separated from the insertion ring, and the closed door can be opened so as to facilitate the aggregate to be discharged from the screening box.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the first driving mechanism drives the screening frame to swing continuously, aggregates can be screened fully, the aggregates with different particle sizes can be separated, after the aggregates are screened, the closed door is opened, the aggregates in the screening box can be taken out from the discharge hole, and therefore the aggregates can be screened fully by the screening machine;

2. the motor can drive the two groups of driving assemblies to rotate, so that the two groups of driving assemblies can enable two sides of the screening frame to be stressed simultaneously, the screening frame can swing conveniently, and the swing stability of the screening frame is effectively improved;

3. the extension of pneumatic cylinder piston rod can overturn the screening frame to make the aggregate discharge screening case automatically, be convenient for the use of screening machine.

Drawings

Figure 1 is a schematic view of a screening machine;

FIG. 2 is a structure for showing a locking mechanism;

FIG. 3 is a schematic view showing the positional relationship of two sets of driving components;

fig. 4 is a structure for showing the first drive mechanism.

In the figure, 1, a frame; 11. a first drive mechanism; 111. a motor; 112. a speed reducer; 113. a first pulley; 114. a second pulley; 115. a turntable; 116. a connecting rod; 2. a screening rack; 21. screening the box; 211. a closing door; 212. a fixing ring; 213. inserting a rod; 214. inserting a ring; 215. a sieve plate; 22. a support plate; 221. a rotating shaft; 23. a second drive mechanism; 24. a locking mechanism; 241. a support bar; 242. a lock lever; 243. a latch hook; 244. a butt joint plate; 245. a spring; 246. a locking plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an aggregate screening machine, including frame 1 and the screening frame 2 of setting in frame 1 top. The screening frame 2 comprises a support plate 22 rotatably connected to the frame 1 and a screening box 21 arranged above the support plate 22. Three sieve plates 215 are sequentially arranged in the screening box 21 from top to bottom, the three sieve plates 215 are arranged in parallel relatively, and the sizes of the sieve holes on the three sieve plates 215 are sequentially reduced from top to bottom, so that the three sieve plates 215 can screen aggregates with different particle sizes.

Referring to fig. 1, three sieve plates 215 divide the screening box 21 into four containing cavities for containing aggregates, discharge ports are formed in the side wall of each containing cavity, and the aggregates can be discharged out of the screening box 21 through the discharge ports after being screened. The outer side of each discharge port is provided with a closed door 211, and the lower end of the closed door 211 is hinged with the side wall of the screening box 21; the upper end of the closing door 211 is connected with the side wall of the screening box 21 through a door lock. The door lock comprises a fixing ring 212 fixedly connected with the side wall of the screening box 21, an inserting rod 213 connected with the fixing ring 212 in a sliding mode and an inserting ring 214 fixedly connected with the closing door 211, and the inserting rod 213 is matched with the inserting ring 214 in an inserting mode. When the insert rod 213 is connected with the insert ring 214, the closing door 211 is in a closed state to seal the discharge hole; when the plunger 213 is disengaged from the collar 214, the closure door 211 can be opened to facilitate the discharge of aggregate from the screen box 21.

Referring to fig. 1, the lower end edge of the screening box 21 is hinged to the upper end of the supporting plate 22, the hinged portion of the screening box 21 and the supporting plate 22 is located under the discharging port, the screening box 21 can be turned over along the hinged portion, so that the discharging port is turned over downwards, aggregate in the screening box 21 is discharged conveniently, a second driving mechanism 23 for turning over the screening box 21 is arranged between the screening box 21 and the supporting plate 22, referring to fig. 2, the second driving mechanism 23 is arranged to be a hydraulic cylinder, a cylinder body of the hydraulic cylinder is hinged to the supporting plate 22, and a piston rod of the hydraulic cylinder is hinged to the lower end of the screening box 21. Hydraulic pressure is started, and the screening box 21 can be driven to overturn by the hydraulic cylinder. The side of the screening box 21 facing away from the hinge is provided with a locking mechanism 24 for fixing the screening box 21 and the support plate 22.

Referring to fig. 2, the locking mechanism 24 includes a support rod 241 fixedly coupled to the upper end of the support plate 22, a locking rod 242 hinge-coupled to the support rod 241, and a locking plate 246 fixedly coupled to the side wall of the classifying box 21. The upper end of the locking rod 242 is provided with a locking hook 243 which is in clamping fit with the locking plate 246; the supporting rod 241 comprises two supporting rods arranged in parallel, the locking rod 242 is arranged between the two supporting rods, the rotating direction of the locking rod 242 is the same as the overturning direction of the screening box 21, one side of the lower end of the locking rod 242 is provided with a butting plate 244, the lower end of the butting plate 244 is fixedly connected with the upper end of the supporting plate 22, a spring 245 is arranged between the butting plate 244 and the locking rod 242, and the spring 245 is arranged along the rotating direction of the locking rod 242; one end of the spring 245 is fixedly connected to the abutment plate 244, and the other end is fixedly connected to the lock lever 242. The spring 245 can secure the stability of the connection between the latch hook 243 and the locking plate 246.

When the latch hook 243 is coupled with the locking plate 246, the classifying box 21 can be integrated with the support plate 22; when the latch hooks 243 are disengaged from the latch plate 246, the hydraulic cylinder can drive the sifting box 21 to turn.

Referring to fig. 3 and 4, the supporting plate 22 is a rectangular plate, the central positions of both sides of the supporting plate 22 in the length direction are fixedly connected with rotating shafts 221, the two rotating shafts 221 are coaxially arranged along the width direction of the supporting plate 22, and the two rotating shafts 221 are rotatably connected with the frame 1, so that the sieving frame 2 can swing along the rotating shafts 221. A first driving mechanism 11 for driving the screening frame 2 to swing is arranged below the supporting plate 22; the first driving mechanism 11 includes a motor 111 fixedly connected to the frame 1, a speed reducer 112 fixedly connected to an output end of the motor 111, and two sets of driving components connected to a low-speed end of the speed reducer 112, and the two sets of driving components are symmetrically distributed along an axis of the rotating shaft 221.

Referring to fig. 3 and 4, the driving assembly includes a connecting rod 116 rotatably connected to the frame 1, the connecting rod 115 being disposed between the rotating plate 115 and the support plate 22, one end of the connecting rod 116 being hinged to the support plate 22, and the other end being hinged to the rotating plate 115. The low-speed end of the speed reducer 112 is coaxially and fixedly connected with a first belt wheel 113, the turntable 115 is coaxially and fixedly connected with a second belt wheel 114, and the first belt wheel 113 is connected with the second belt wheel 114 through a synchronous belt. When the motor 111 is started, the motor 111 can rotate through the belt transmission turntable 115, so that the turntable 115 drives the screening frame 2 to swing through the connecting rod 116.

The implementation principle of the embodiment is as follows: the aggregate is placed on the sieve plate 215 on the upper layer of the sieving box 21, the motor 111 is started, and the motor 111 drives the sieving frame 2 to swing, so that the aggregate can be sieved.

After the aggregate is screened, the closing door 211 is opened, the locking mechanism 24 is opened, the hydraulic cylinder is started, the hydraulic cylinder can drive the screening box 21 to turn over, and the aggregate in the screening box 21 can be discharged out of the screening box 21.

The embodiments of the present invention are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a bone material sieve extension, includes frame (1) and sets up screening frame (2) in frame (1) top, its characterized in that: the screening frame (2) comprises a screening box (21), a plurality of screening plates (215) are sequentially arranged in the screening box (21) from top to bottom, the sizes of screening holes on the screening plates (215) are gradually reduced from top to bottom, a plurality of discharging holes are formed in one side of the screening box (21), the discharging holes are respectively located on one sides of the screening plates (215), and a closed door (211) is arranged on each discharging hole;

the screening frame (2) is fixedly connected with rotating shafts (221) at two ends in the horizontal direction, the axes of the two rotating shafts (221) are positioned on the same straight line, and the rotating shafts (221) are rotatably connected with the frame (1); the screening machine is characterized in that a first driving mechanism (11) used for driving the screening frame (2) to swing along the axis of the rotating shaft (221) is arranged on the rack (1).

2. The aggregate screening machine of claim 1, wherein: first actuating mechanism (11) include with frame (1) fixed connection's motor (111) and drive assembly, drive assembly include carousel (115) be connected with motor (111) output and with set up the transfer line between carousel (115) and screening frame (2), transfer line one end is rotated with carousel (115) edge and is connected, and the other end rotates with one side of keeping away from pivot (221) with screening frame (2) lower extreme and is connected.

3. The aggregate screening machine of claim 2, wherein: the drive assembly is provided with two sets, two sets of drive assembly is along pivot (221) axis symmetric distribution, carousel (115) rotate with frame (1) and are connected, motor (111) output drives carousel (115) operation through the belt drive.

4. The aggregate screening machine of claim 3, wherein: the output end of the motor (111) is fixedly connected with a speed reducer (112), the high-speed end of the speed reducer (112) is fixedly connected with the output end of the motor (111) in a coaxial mode, the low-speed end of the speed reducer (112) is fixedly connected with a first belt wheel (113) in a coaxial mode, the turntable (115) is fixedly connected with a second belt wheel (114) in a coaxial mode, and the first belt wheel (113) is connected with the second belt wheel (114) through a synchronous belt.

5. The aggregate screening machine of claim 1, wherein: the screening frame (2) further comprises a supporting plate (22), the edge of the lower end of the screening box (21) is hinged with the upper end of the supporting plate (22), and the hinged position of the screening box (21) and the supporting plate (22) is located right below the discharge port; a second driving mechanism (23) for driving the screening box (21) to turn over along the hinged position is arranged between the screening box (21) and the supporting plate (22);

and a locking mechanism (24) for fixing the screening box (21) is arranged on one side of the support plate (22) far away from the hinged part.

6. The aggregate screening machine of claim 5, wherein: the second driving mechanism (23) is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is hinged to the supporting plate (22), and the piston rod of the hydraulic cylinder is hinged to the lower end of the screening box (21).

7. The aggregate screening machine of claim 6, wherein: locking mechanism (24) include with backup pad (22) upper end fixed connection's bracing piece (241), with bracing piece (241) upper end articulated locking pole (242) and with screening case (21) fixed connection's locking plate (246), locking pole (242) upper end is provided with locking plate (246) joint complex latch hook (243), locking pole (242) lower extreme extends to backup pad (22) one side and fixedly connected with spring (245), locking pole (242) direction of rotation setting is followed in spring (245), the one end fixedly connected with butt plate (244) of bracing piece (241) are kept away from in spring (245), butt plate (244) lower extreme and backup pad (22) fixed connection.

8. The aggregate screening machine of claim 1, wherein: the utility model discloses a screening box, including closed door (211), screening box (21), door lock, fixed ring (212), inserted bar (213) and closed door (211) fixed connection's inserted ring (214) that closed door (211) lower extreme and screening box (21) are articulated, closed door (211) upside is provided with the lock, the lock includes with screening box (21) lateral wall fixed connection's fixed ring (212), slide with fixed ring (212) and be connected, inserted bar (213) and inserted ring (214) cooperation of pegging graft.